Brush and duck scraper bracket.



W. B. WILL.

BRUSH ANDDUOK SGBAPEB BRACKET. ArPLIoATIox FILED 11,111.2, 1907.

902,270. Patented oo.27,19os. 2 SHEETS-SHEET 2.

MIMI:

WILLIAM B. WILL, OF GRAND JUNCTION, COLORADO.

BRUSH AND DUCK SCRAPER BRACKET.

Specification of Letters Patent.

Patented Oct. 27, 1908.

Application tiled March 2,` 1907. Serial No. 360,178.

To all whom it may concern:

Be 1t known that I, WILLIAM B. WILL, a

citizen of the United States, residing aty Grand Junction, in the county of Mesa and State of Colorado, have invented a new and useful Improvement in a Brush and Duck Scraper Bracket, of which the following is a specification.

This invention relates to an improvement in Scrapers for grain mill rollers, and the object of the invention is a Scraper which will not injure the roller, and which can be adjusted or removed without removing the bracket by which the scraper is supported.

It is necessary to employ in connection with these rollers a scraper to prevent the stock being carried around the rollers, thereby clogging them and it is usual to support Scrapers by means of brackets lbolted or otherwise secured to some portion of the roller frame.

It is often advisable to adjust the Scrapers,

or to remove them entirely either to be cleaned or for the purpose of replacing them with new Scrapers, and it has heretofore been necessary so far as applicant is aware, to remove the bracket Vfrom the frame in order to remove the Scrapers.

It has also been usual to make the Scrapers of metal and if improperly adjusted more or less damage would be done to the roller through friction between the rollers and the Scrapers. This injury I entirel prevent by forming the Scrapers of a soft eXible material, such as duck or canvas belting.

In the drawings forming a part of this specification-Figure l is a view in elevaj tion showing a roller, a portion of the fram'e and my device applied thereto. Fig. 2 is a transverse section. taken through a pair of rollers, one of my brackets being shown in elevation, and the Scrapers and holding means being shown in section. Fig. 3 is a face view of a two-part bracket, Scrapers and holders being Shown in section. Fig. 4 is a section on the line 4 4 of Fig. 3. Fig. 5 is a face view of one piece of the bracket shown in Fig. 2, the Scrapers and screws being omitted. Fig. 6 is a top edge view of the part of the bracket shown in Fig. 5. Fig. 7 is an end view of Fig. 5. Fig. 8 is a face view of the other portion or member of the bracket. Fig. 9 is atop edge view of the member of the bracket shown in Fig. 8. Fig. l0 is an end view of the member of the bracket shown in Fig. 8,

In these drawings A represents the rollers which are ournaled in a frame A. To the opposite sides of this frame I screw by means of suitable bolts or in any other desired manner, a metal bracket B. This bracket has formed upon it adjacent its upper corners and in vertical alinement with the axis of the rollers outwardly extending shoulders B arranged in pairs, one pair of shoulders being provided for each roller. Each bracket is also provided with an outwardly extending lug B2 arranged below each pair of shoulders B and in vertical alinement with the space between the shoul ders of a pair.

The lugs B2 are provided with suitable threaded perforations through which work screws C. These screws are in the form of rods threaded intermediate their ends to engage the threads of the perforations of the lugs B2 and each of the screws has a smooth upper end portion terminating in a cap C. The lower end of each screw is provided with a rectangular head C2 so that it can be readily turned with a wrench or other suitable implement.

For each roller and extending parallel with the roller is a scraper D which scraper is arranged radially with respect to the roller axis and is preferably formed of duck canvas belting, although any other similar material might be employed without changing my invention. This scraper is held hetween two holding blocks E, which blocks are formed of two pieces of wood secured together by screws with'the duck scraper arranged between them, the Scraper projecting approximately about one-half inch, more or less above the upper edges of the holding blocks. The holder formed by these blocks together with the scraper fits Slidably between pairs of Shoulders B carried by `opposite brackets and it will be of course understood that it is the end portions only of the holder which fits between said holders. and that a holder and scraper is provided for each roller, as shown in Fig. 2.

The holders are held in position between the shoulders by the screws O the caps of which .bear upon the under faces of the holders and upon the lower edges of 'the Scrapers held by said holders. By turning the screws up the Scrapers will be forced toward the rollers and by unscrewing the threaded portion of the rod of which the screw is formed will disengage from the threaded perforation of its lug B2 and the screw will drop down until the cap rests upon the said lug. This will permit the holder and scraper to fall from between the shoulders, their ends resting upon the cap.

It will be obvious that by permitting the screws at each end to drop into their lowest positions, that the holder will fall out of engagement with the pair of shoulders at cach end and that the holder and scraper can be at once removed and again replaced and run up into position by tightening up the screw without removing or touching the brackets.

In Fig. 2 I shave shown the bracket B as formed in one piece and therefore adapted for use only with a pair of rollers of a certain diameter. In order to provide brackets which can be employed with rollers ofV va-v rying diameters I construct the bracket in two sections, as shown in Figs. 3 and il. In this construction, I designate the complete bracket as F and it comprises two overlapping sections G and H, each of these sections is angled., as shown at G and H, the angled portion G upon the bracket Gr being upon the right hand end as seen in Fig. 3 and the angled portion H being upon the left hand side of the sectional member H as seen in Fig. 3.

The angled portion Gr is provided with parallel shoulders J, while the angled portion H is provided with similar shoulders J. These shoulders it will be of course understood correspond in construction with the shoulders B shown in one-piece brackets. The lugs B2 shown in the one-piece bracket are replaced in the sectional bracket by similar lugs K and K carried respectively by the members G and H. As these members overlap the member Gr is provided with a longitudinal slot L through which the lug K of the member H projects and along which it can slide when it is desired to lengthen the bracket by sliding the two members upon each other.

In order to more securely lock the two sections together I recess the inner face of the section H as shown at H2 and form a shoulder G2 upon the inner face of the member G, by thickening the same as shown in Fig. Il. The adjustable bracket thus formed carries the shoulders E and the scrapers D and are also provided with the screws C, working respectively through the lugs K and K exactly as in the case of the one-piece bracket B, there being no changes in the construction of these last mentioned parts, and the manner of operating being exactly the same.

A two-part bracket is connected to the iframe A by bolts in the same manner as shown by the bracket in Fig. l, the bolts passing through the slot L, which slot is of the same width as the diameter of the bolts, and will take the same bolt taken by the bolt openings of the one-part bracket. In adjusting the two-part bracket the nuts are loosened and the bracket properly adjusted and the nuts then tightened.

Having thus fully described my invention, what I claim as new and desire to secure by Letters Patent, is

l. The combination with a frame, of a pair of rollers carried by said frame, brackets carried by said frame and arranged transversely with respect to said rollers, vertically slidable scrapers held by said brackets in engagement with the rollers, and movable means carried by the brackets to engage and prevent sliding movement of the scrapers.

2. The combination with a frame, of a pair of rollers carried by said frame, brackets arranged transverse to said rollers and supported by the frame, a pair of shoulders formed on one side of each bracket, scrapers having their end portions held loosely between said shoulders, and vertically arranged screws bearing aga-inst the lower edges of the scrapers and locking them between the shoulders.

3. A device of the kind described comprising a frame, oppositely arranged brackets carried by the frame, shoulders, in pairs, formed upon said brackets, perforated lugs carried by the brackets, each lug being in vertical alinement with the space between one pair of shoulders, vertically movable blocks extending from bracket to bracket and having their end portions iitting between the shoulders, a scraper formed of a flexible fabric held between said blocks, and block adjusting means working through the lugs and engaging the lower faces of the blocks.

4. A device of the kind described comprising a supporting frame, brackets carried by the frame, each bracket comprising two members, said members being oppositely angled, the members of each bracket being slidable on each other, the body portion of one member being slotted, a pair of shoulders formed on each angled portion and spaced apart, lugs carried by the body portions of the said members, the lug of one member extending through the slot of the other, scrapers having their end portions loosely held between the shoulders, and screws working upwardly through the lugs J. F. SPENCER, S. B. HU'roHiNsoN, 

